i
875P Neo P Series
Version 2.0
G52-M6758X8
MS-6758 (v2.X) ATX Mainboard
ii
Manual Rev: 2.0
Release Date: January 2004
FCC-B Radio Frequency Interference Statement
This equipment has been tested and found to comply with the limits for a class
B digital device, pursuant to part 15 of the FCC rules. These limits are designed
to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to
cause harmful interference, in which case the user will be required to correct
the interference at his own expense.
Notice 1
The changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
Notice 2
Shielded interface cables and A.C. power cord, if any, must be used in order to
comply with the emission limits.
VOIR LA NOTICE D’INSTALLATION AVANT DE RACCORDER AU
RESEAU.
Micro-Star International MS-6758
T ested to comply
with FCC Standard
For Home or Office Use
iii
Copyright Notice
The material in this document is the intellectual property of MICRO-STAR
INTERNATIONAL. We take every care in the preparation of this document,
but no guarantee is given as to the correctness of its contents. Our products
are under continual improvement and we reserve the right to make changes
without notice.
Trademarks
All trademarks are the properties of their respective owners.
AMD, Athlon™, Athlon™ XP, Thoroughbred™, and Duron™ are registered
trademarks of AMD Corporation.
Intel® and Pentium® are registered trademarks of Intel Corporation.
PS/2 and OS®/2 are registered trademarks of International Business Machines
Corporation.
Microsoft is a registered trademark of Microsoft Corporation. Windows® 98/
2000/NT/XP are registered trademarks of Microsoft Corporation.
NVIDIA, the NVIDIA logo, DualNet, and nForce are registered trademarks or
trademarks of NVIDIA Corporation in the United States and/or other countries.
Netware® is a registered trademark of Novell, Inc.
Award® is a registered trademark of Phoenix T echnologies Ltd.
AMI® is a registered trademark of American Megatrends Inc.
Kensington and MicroSaver are registered trademarks of the Kensington T echnology Group.
PCMCIA and CardBus are registered trademarks of the Personal Computer
Memory Card International Association.
Revision History
Revision Revision History Date
V1.0 First release with chipsets March 2003
Intel® 875P & Intel® ICH5
V1.1 Update the Core Center photo April 2003
Delete the S-Bracket description
V2.0 Change SB to ICH5R and audio January 2004
codec to RealT ek ALC850
iv
1. Always read the safety instructions carefully.
2 . Keep this User’s Manual for future reference.
3 . Keep this equipment away from humidity.
4 . Lay this equipment on a reliable flat surface before setting it up.
5. The openings on the enclosure are for air convection hence protects the
equipment from overheating. Do not cover the openings.
6 . Make sure the voltage of the power source and adjust properly 110/220V
before connecting the equipment to the power inlet.
7. Place the power cord such a way that people can not step on it. Do not
place anything over the power cord.
8. Always Unplug the Power Cord before inserting any add-on card or module.
9. All cautions and warnings on the equipment should be noted.
10 . Never pour any liquid into the opening that could damage or cause electrical
shock.
11. If any of the following situations arises, get the equipment checked by a
service personnel:
z The power cord or plug is damaged.
z Liquid has penetrated into the equipment.
z The equipment has been exposed to moisture.
z The equipment has not work well or you can not get it work according
to User’s Manual.
z The equipment has dropped and damaged.
z The equipment has obvious sign of breakage.
12. Do not leave this equipment in an environment unconditioned, storage
temperature above 600 C (1400F), it may damage the equipment.
Safety Instructions
CAUTION: Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by the
manufacturer.
v
CONTENTS
FCC-B Radio Frequency Interference Statement ............................................ii
Copyright Notice ...........................................................................................iii
Revision History ...........................................................................................iii
Safety Instructions .......................................................................................iv
Chapter 1. Getting Started ........................................................................ 1-1
Mainboard Specifications ....................................................................1-2
Mainboard Layout ............................................................................... 1-4
MSI Special Features ...........................................................................1-5
Color Management ........................................................................ 1-5
CoreCenter ....................................................................................1-6
Live BIOS™/Live Driver™ ............................................................ 1-8
Live Monitor™ .............................................................................. 1-9
D-Bracket™ 2 (Optional) ............................................................. 1-10
Round Cable (Optional) ............................................................... 1-11
CPU Thermal Protection .............................................................. 1-11
Chapter 2. Hardware Setup ....................................................................... 2-1
Quick Components Guide.....................................................................2-2
Central Processing Unit: CPU ..............................................................2-3
CPU Core Speed Derivation Procedure..........................................2-3
Memory Speed/CPU FSB Support Matrix .....................................2-3
CPU Installation Procedures for Socket 478 ..................................2-4
Installing the CPU Fan...................................................................2-5
Memory................................................................................................2-7
Introduction to DDR SDRAM........................................................ 2-7
DDR Population Rules...................................................................2-7
Installing DDR Modules ................................................................2-8
Power Supply .......................................................................................2-9
ATX 20-Pin Power Connector: JPWR1 .......................................... 2-9
ATX 12V Power Connector: JPWR2 .............................................. 2-9
vi
Back Panel .......................................................................................... 2-10
Mouse Connector ....................................................................... 2-10
Keyboard Connector ................................................................... 2-11
USB Connectors.......................................................................... 2-11
1394 Ports .................................................................................... 2-12
RJ-45 LAN Jack: Giga-bit LAN (Intel 82547EI) ............................. 2-12
Serial Port Connector: COM A .................................................... 2-13
Audio Port Connectors ............................................................... 2-13
Parallel Port Connector: LPT1...................................................... 2-14
Connectors......................................................................................... 2-15
Floppy Disk Drive Connector: FDD1 ............................................ 2-15
Fan Power Connectors: CF AN1 / SFAN1 / PFAN1 / NBFAN1 ..... 2-15
AT A100 Hard Disk Connectors: IDE1 & IDE2 ............................. 2-16
Serial AT A/Serial AT A RAID Connectors controlled by
ICH5R: SER1, SER2 (Optional) ............................................ 2-17
Chassis Intrusion Switch Connector: J8...................................... 2-18
Front Panel Connectors: JFP1 & JFP2 ......................................... 2-18
IEEE 1394 Connector: J1394_1 (Optional).................................... 2-19
CD-In Connector: JCD1 ............................................................... 2-20
D-Bracket™ 2 Connector: JLED1................................................. 2-20
Front USB Connectors: JUSB2 & JUSB3..................................... 2-21
Front Panel Audio Connector: JAUD1 ........................................ 2-21
Jumpers .............................................................................................. 2-22
Clear CMOS Jumper: JBA T1........................................................ 2-22
Slots ................................................................................................... 2-23
PCI Interrupt Request Routing .................................................... 2-23
AGP (Accelerated Graphics Port) Slot ......................................... 2-23
PCI (Peripheral Component Interconnect) Slots.......................... 2-23
Chapter 3. BIOS Setup.............................................................................. 3-1
Entering Setup......................................................................................3-2
vii
Selecting the First Boot Device ..................................................... 3-2
Control Keys .................................................................................3-3
Getting Help ..................................................................................3-3
The Main Menu ...................................................................................3-4
Standard CMOS Features.....................................................................3-6
Advanced BIOS Features..................................................................... 3-8
Advanced Chipset Features ............................................................... 3-12
Power Management Features ............................................................. 3-15
PNP/PCI Configurations..................................................................... 3-19
Integrated Peripherals ........................................................................ 3-22
PC Health Status ................................................................................ 3-27
Frequency/Voltage Control ................................................................ 3-28
Set Supervisor/User Password........................................................... 3-32
Load High Performance/BIOS Setup Defaults .................................... 3-33
Appendix A: Using 2-, 4-, 6- or 8- Channel Audio Function ......................A-1
Installing the Audio Driver ..................................................................A-2
Installation for Windows 98SE/ME/2000/XP................................A-2
Software Configuration .......................................................................A-4
Sound Effect .................................................................................A-4
Speaker Configuration..................................................................A-6
HRTF Demo ..................................................................................A-8
General .........................................................................................A-9
SPDIF .........................................................................................A-10
Using 2-, 4-, 6- & 8- Channel Audio Function ...................................A-12
Appendix B: Intel ICH5R Serial A TA RAID Intr oduction .........................B-1
Introduction ........................................................................................ B-2
BIOS Configuration ............................................................................. B-5
Installing Software ............................................................................ B-13
RAID Migration Instructions ............................................................ B-19
1-1
Getting Started
Chapter 1. Getting
Started
Thank you for choosing the 875P Neo P series (MS-6758)
v2.X ATX mainboard. The 875P Neo P series is based on Intel
®
875P & ICH5R chipsets for optimal system efficiency . Designed
to fit the advanced Intel® Pentium® 4 processors in 478 pin
package, the 875P Neo P series delivers a high performance and
professional desktop platform solution.
Getting Started
1-2
MS-6758 ATX Mainboard
Mainboard Specifications
CPU
h Supports Intel® P4 Northwood/Prescott (Socket 478) processors.
h FSB 533~800MHz, depending on the North Bridge integrated.
h Supports up to 3.4GHz or higher speed.
Chipset
h Intel® Canterwood (875P) chipset
- Supports FSB 800/533MHz.
- Supports AGP 8X interface.
- Supports ECC memory.
- Supports Single/Dual Channel DDR 400/333 memory up to 4GB.
h Intel® ICH5R chipset
- Hi-Speed USB (USB2.0) controller, 480Mb/sec, 8 ports.
- 2 Serial AT A/150 ports.
- 2 channel Ultra AT A 100 bus Master IDE controller .
- PCI Master v2.3.
- I/O APIC.
- Supports both ACPI and legacy APM power management.
- Serial A TA/150 RAID 0 and RAID 1 (Optional).
Main Memory
h Supports four unbuf fered DIMM of 2.5 Volt DDR SDRAM.
hh
hh
h Supports up to 4GB memory size.
hh
hh
h Supports Dual channel DDR 333/400/433/466/500/533 MHz and up.
(DDR433/466/500/533 are overclocking spec)
Slots
h One AGP slot supports 8x/4x.
h Five 32-bit v2.3 Master PCI bus slots (support 3.3v/5v PCI bus interface).
On-Board IDE
h Dual Ultra DMA 66/100 IDE controllers integrated in ICH5R.
- Supports PIO, Bus Master operation modes.
- Can connect up to four Ultra ATA drives.
h Serial AT A/150 controller integrated in ICH5R.
- Up to 150MB/sec transfer speeds.
- Can connect up to two Serial ATA drives.
- Supports SAT A RAID 0/RAID 1 (Optional).
1-3
Getting Started
On-Board Peripherals
h On-Board Peripherals include:
- 1 floppy port supports 2 FDDs with 360K, 720K, 1.2M, 1.44M and
2.88Mbytes
- 1 serial port COMA
- 1 parallel port supports SPP/EPP/ECP mode
- 8 USB 2.0 ports (Rear * 4/ Front * 4)
- 1 Line-In/Line-Out/Mic-In/Real Speaker Out/Center-Subwoofer Speaker
Out/S/PDIF Out audio port
- 1 RJ45 LAN jack (Optional)
- 1 1394 port, 1 mini 1394 port and 1 IEEE 1394 pinheader (Optional)
Audio
h AC97 link controller integrated in Intel® ICH5R chipset.
h 8-channel audio codec RealTek ALC850.
- Compliance with AC97 v2.3 Spec.
- Meet PC2001 audio performance requirement.
LAN (Optional)
h Intel® 82547EI (CSA interface)
- Integrated Fast Ethernet MAC and PHY in one chip.
- Supports 10Mb/s, 100Mb/s and 1000Mb/s
- Compliance with PCI 2.2.
- Supports ACPI Power Management.
BIOS
h The mainboard BIOS provides “Plug & Play” BIOS which detects the
peripheral devices and expansion cards of the board automatically.
h The mainboard provides a Desktop Management Interface (DMI) function
which records your mainboard specifications.
Dimension
h A TX Form Factor: 30.5 cm (L) x 24.4 cm (W).
Mounting
h 9 mounting holes.
1-4
MS-6758 ATX Mainboard
Mainboard Layout
875P Neo P series (MS-6758) v2.X A TX Mainboard
BATT
+
ICH5R
D
I
M
M
1
D
I
M
M
3
D
I
M
M
2
D
I
M
M
4
JAUD1
JUSB2
JLED1
A
T
X
P
o
w
e
r
S
u
p
p
l
y
CFAN1
NBFAN1
SER1
SER2
JFP1
JFP2
SFAN1
PFAN1
Codec
Winbond
W83627HF
Intel
547EI
VIA
VT6306
BIOS
PCI Slot 5
PCI Slot 4
PCI Slot 3
PCI Slot 2
PCI Slot 1
I
D
E
2
I
D
E
1
JPWR2
Top : Parallel Port
Bottom:
COMA
1394 Port
Mini 1394 Port
Top : mouse
Bottom: keyboard
T: LAN ja ck
B: USB ports
JCD1
F
D
D
1
AGP Slot
JBAT1
JUSB3
T: SPD IF Out
B: USB ports
T:
M:
B:Mic
Line-In
Line-Out
T:
M:
B:SPDIF Out
(Optional)
Line-Out
Line-Out
Intel
Canterwood
(875P)
J1394_1
J8
1-5
Getting Started
MSI Special Features
Color Management
MSI has an unified color management rule for some connectors on the
mainboards, which helps you to install the memory modules, expansion cards
and other peripherals devices more easily and conveniently.
h Dual Memory DDR DIMMs: Channel A is light green, Channel B is
purple
h Intel spec IDE AT A66/100 connector: 1st IDE is blue, 2nd IDE is
white
h Serial AT A150 connector: orange
h 1394 connector: dark green
h AGP 8X slot: red
h USB 2.0 connector: yellow
h Front panel connector JFP1 : HDD LED is red, Reset Switch is blue,
Power Switch is black, Power LED is light green.
h Front panel connector JFP2: Power LED is light green.
BATT
+
BIOS
Memory DDR DIMMs
Front Panel connector JFP2
USB 2.0 connector
AGP 8X Slot
Intel spec IDE ATA66/100 connectors:
1st IDE: blue/2nd IDE: white
Front Panel connector JFP1
Serial ATA150 connectors
1394 connector
1-6
MS-6758 ATX Mainboard
CoreCenter
CoreCenter
(TM)
- contains OC Menu panel, users can determine their
processor and memory type to optimize its memory capacity. This all-in-one
hardware console is advanced combination of the popular PC Alert and Fuzzy
Logic. Including powerful function with hardware monitor, system alert and
instinctive UI of overclocking, CoreCenter is just like your PC doctor that can
detect, view and adjust the PC hardware and system status during real time
operation.
In the left side it shows the current system status including the Vcore, 3.
3V, +5V and 12V. In the right side it shows the current PC hardware status such
as the CPU & system temperatures and all fans speeds.
When you click the red triangles in the left and right sides, two submenus will open for users to overclock, overspec or to adjust the thresholds of
system to send out the warning messages. If you click the Core Center button
in the top, a screen pops up for you to choose the “Auto mode” or “User
mode” of CPU fan.
1-7
Getting Started
Left-wing: Current system status
In the left sub-menu, you can configure the settings of FSB, Vcore, Memory
Voltage and AGP Voltage by clicking the radio button in front of each item and
make it available (the radio button will be lighted as yellow when selected), use
the “+” and “-” buttons to adjust, then click “OK” to apply the changes. Then
you can click Save to save the desired FSB you just configured.
Also you may click Auto to start testing the maximal CPU overclocking
value, The CPU FSB will automatically increase the testing value until the PC
reboots. Or you may click Default to restore the default values.
Right-wing: PC hardware status during real time operation
In the right sub-menu, here you can configure the PC hardware status
such as CPU & system temperatures and fan speeds. You may use the scroll
bars to adjust each item, then click “OK” to apply the changes. The values you
set for the temperatures are the maximum thresholds for the system for warnings,
and the value for fan speeds are the minimum thresholds.
T op-side: User mode/Auto mode
Here you may adjust the CPU fan speed. If you choose User mode, you
may adjust the CPU fan speed in 8 different modes, from High Speed to Low
speed.
OC Menu
The exclusive OC Menu is fully developed to support DDR400+ memory
modules. You can select DDR433,
DDR450, DDR466, DDR500 or DDR 533
from DRAM frequency menu in BIOS
setting. Or you can just click on OC Menu
button to configure in the OC Menu at
CoreCenter . OC Menu will adjust the necessary parameters of voltage and frequency simultaneously . The only limitation was the margin of processor from
overclocking.
1-8
MS-6758 ATX Mainboard
Live BIOS™/Live Driver™
The Live BIOS™/Live Driver™ is a tool used to detect
and update your BIOS/drivers online so that you don’t need to
search for the correct BIOS/driver version throughout the whole
Web site. To use the function, you need to install the “MSI
Live Update 3” application. After the installation, the “MSI
Live Update 3” icon (as shown on the right) will appear on the
screen.
Double click the “MSI Live Update 3” icon, and the following screen will
appear:
Five buttons are placed on the left column of the screen. Click the desired
button to start the update process.
Ø Live BIOS – Updates the BIOS online.
Ø Live Driver – Updates the drivers online.
Ø Live VGA BIOS – Updates the VGA BIOS online.
Ø Live VGA Driver – Updates the VGA driver online.
Ø Live OSD – Updates the firmware of the OSD products online.
Ø Live Utility – Updates the utilities online.
If the product you purchased does not support any of the functions listed
above, a “sorry” message is displayed. For more information on the update
instructions, insert the companion CD and refer to the “Live Update Guide”
under the “Manual” Tab.
1-9
Getting Started
Live Monitor™
The Live Monitor™ is a tool used to schedule the search
for the latest BIOS/drivers version on the MSI Web site. To use
the function, you need to install the “MSI Live Update 3”
application. After installation, the “MSI Live Monitor” icon (as
shown on the right) will appear on the screen. Double click this
icon to run the application.
Double click the “MSI Live Monitor” icon at the lower-right corner
of the taskbar, and the following dialog box will appear. You can specify how
often the system will automatically search for the BIOS/drivers version, or
change the LAN settings right from the dialog box.
You can right-click the MSI Live Monitor icon to perform the functions
listed below:
zz
zz
z Auto Search – Searches for the BIOS/drivers version you need immediately.
zz
zz
z View Last Result – Allows you to view the last search result if there is any.
zz
zz
z Preference – Configures the Search function, including the Search schedule.
zz
zz
z Exit – Exits the Live Monitor™ application.
zz
zz
z FAQ – Provides a link to a database which contains various possible questions
about MSI's products for users to inquire.
1-10
MS-6758 ATX Mainboard
D-Bracket™ 2 (Optional)
D-Bracket™ 2 is a USB bracket integrating four Diagnostic LEDs, which
use graphic signal display to help users understand their system. The LEDs
provide up to 16 combinations of signals to debug the system. The 4 LEDs can
detect all problems that fail the system, such as VGA, RAM or other failures.
This special feature is very useful for overclocking users. These users can use
the feature to detect if there are any problems or failures. D-Bracket™ 2 supports
both USB 1.1 & 2.0 spec.
Red
Green
D-Bracket™ 2
1 2
3 4
D-Bracket™ 2 Description
System Power ON
- The D-LED will hang here if the processor is damaged or
not installed properly.
Early Chipset Initialization
Memory Detection Test
- Testing onboard memory size. The D-LED will hang if the
memory module is damaged or not installed properly.
Decompressing BIOS image to RAM for fast booting.
Initializing Keyboard Controller.
Testing VGA BIOS
- This will start writing VGA sign-on message to the screen.
12
3
4
1-11
Getting Started
D-Bracket™ 2 Description
Processor Initialization
- This will show inform ation regarding the processor (like
brand name, system bus, etc…)
Testing RTC (Real Time Clock)
Initializing Video In terface
- This will start detecting CPU clock, checking type of video
onboard. Then, detect and initialize the video adapter.
BIOS Sign On
- This will start showing information about logo, processor
brand name, etc….
Testing Base and Extended Memory
- Testing base memory from 240K to 640K and extended
memory above 1MB using various pa tterns.
Assign Resources to all ISA.
Initializing Hard Drive Controller
- This will initialize IDE drive and controller.
Initializing Floppy Drive Controller
- This will initializing Floppy Drive and controller.
Boot Attempt
- This will set low stack and boot via INT 19h.
Operating System Bootin g
1-12
MS-6758 ATX Mainboard
CPU Thermal Protection
Aimed to prevent the CPU from overheating, MSI has developed a CPU
Thermal Protection mechanism for Intel® CPU platform. This CPU Thermal
Protection mechanism works on a thermal signal sensor. If the mechanism
senses an abnormal temperature rise, it will automatically shut down the system
and the CPU temperature will then drop down and resume normal. With this
unique feature, users can better protect their CPU. Please note that this feature
is for Intel® Pentium CPU only.
Round Cable (Optional)
Round cable is an enhanced cable for PCI IDE and Ultra DMA controller.
It has the following benefits:
h Data transfer rate started by 133MB/s
h Backward compatibility (A T A33/66/100/133)
h Higher performance than traditional Flat cable (data rate)
h Improved data robustness
h Better airflow due to thinner AT A/133 cable
Connect to the system
connectors on the mainboard.
Connect to the slave drive.
Connect to the master drive.
Connect one end to the
floppy disk drive
connector (FDD1) and
the other end to the
standard floppy disk.
2-1
Hardware Setup
Chapter 2. Hardware
Setup
This chapter tells you how to install the CPU, memory
modules, and expansion cards, as well as how to setup the
jumpers on the mainboard. Also, it provides the instructions on
connecting the peripheral devices, such as the mouse, keyboard,
etc.
While doing the installation, be careful in holding the
components and follow the installation procedures.
Hardware Setup
2-2
MS-6758 ATX Mainboard
BATT
+
BIOS
Quick Components Guide
DDR DIMMs, p.2-7
CPU, p.2-3
Back Panel
I/O, p.2-10
JCD1, p.2-20
JUSB2, JUSB3,
p.2-21
JLED1, p.2-20
JFP1, p.2-18
AGP Slot, p.2-23
PCI Slots, p.2-23
IDE1, IDE2,
p.2-16
FDD1, p.2-15
SER1, SER2,
p.2-17
CFAN1, p.2-15
JBAT1, p.2-22
JFP2, p.2-18
J1394_1, p.2-19
NBFAN1, p.2-15
JPWR2, p.2-9
JPWR1, p.2-9
PFAN1, p.2-15
SFAN1, p.2-15
JAUD1, p.2-21
J8, p.2-18
2-3
Hardware Setup
Central Processing Unit: CPU
Example of CPU Core Speed Derivation Procedur e
If CPU Clock = 133MHz
Core/Bus ratio = 23
then CPU core speed = Host Clock x Core/Bus ratio
= 133MHz x 23
= 3.06 GHz
The mainboard supports Intel® Pentium® 4 Northwood/Prescott
processor in the 478 pin package. The mainboard uses a CPU socket called
PGA478 for easy CPU installation. When you are installing the CPU, make
sure the CPU has a heat sink and a cooling fan attached on the top to prevent
overheating. If you do not find the heat sink and cooling fan, contact your
dealer to purchase and install them before turning on the computer.
MSI Reminds Y ou...
Overheating
Overheating will seriously damage the CPU and system, always
make sure the cooling fan can work properly to protect the CPU
from overheating.
Overclocking
This motherboard is designed to support overclocking. However,
please make sure your components are able to tolerate such
abnormal setting, while doing overclocking. Any attempt to
operate beyond product specifications is not recommended. We
do not guarantee the damages or risks caused by inadequate
operation or beyond product specifications.
Memory Speed/CPU FSB Support Matrix
*: Overclocking spec.
Memory
FSB
DDR266 DDR333 DDR400 DDR43 3 DDR466 DDR500 DDR533
FSB533 OK OK N/A N/A N/A N/A N/A
FSB800 OK OK OK OK * OK * OK * OK*
2-4
MS-6758 ATX Mainboard
CPU Installation Procedures for Socket 478
1. Please turn off the power and
unplug the power cord before
installing the CPU.
2. Pull the lever sideways away
from the socket. Make sure
to raise the lever up to a 90degree angle.
3. Look for the gold arrow. The
gold arrow should point towards the lever pivot. The
CPU can only fit in the correct
orientation.
4. If the CPU is correctly
installed, the pins should be
completely embedded into the
socket and can not be seen.
Please note that any violation
of the correct installation
procedures may cause
permanent damages to your
mainboard.
5. Press the CPU down firmly
into the socket and close the
lever. As the CPU is likely to
move while the lever is being
closed, always close the lever
with your fingers pressing
tightly on top of the CPU to
make sure the CPU is
properly and completely
embedded into the socket.
Open Lever
90 degree
Sliding
Plate
Close
Lever
Press down
the CPU
Gold arrow
Gold arrow
Gold arrow
Correct CPU placement
Incorrect CPU place me n t
X
O
2-5
Hardware Setup
Installing the CPU Fan
As processor technology pushes to faster speeds and higher performance,
thermal management becomes increasingly important. To dissipate heat, you
need to attach the CPU cooling fan and heatsink on top of the CPU. Follow
the instructions below to install the Heatsink/Fan:
2. Position the heatsink onto the reten-
tion mechanism.
1. Locate the CPU and its retention
mechanism on the motherboard.
3. Mount the fan on top of the heatsink.
Press down the fan until its four clips
get wedged in the holes of the retention mechanism.
4. Press the two levers down to fasten
the fan. Each lever can be pressed
down in only ONE direction.
retention mechanism
levers
2-6
MS-6758 ATX Mainboard
5.
Connect the fan power cable from the mounted fan to the 3-pin fan power connector
on the board.
fan power cable
NOTES
2-7
Hardware Setup
Memory
The mainboard provides 4 slots for 184-pin, 2.5V DDR DIMM with 8
memory banks. Y ou can install DDR333 / DDR400 / DDR433 / DDR466 / DDR500
/ DDR533 SDRAM modules on the DDR DIMM slots (DIMM 1~4). T o operate
properly, at least one DIMM module must be installed.
Introduction to DDR SDRAM
DDR (Double Data Rate) SDRAM is similar to conventional SDRAM,
but doubles the rate by transferring data twice per cycle. It uses 2.5 volts as
opposed to 3.3 volts used in SDR SDRAM, and requires 184-pin DIMM modules
rather than 168-pin DIMM modules used by SDR SDRAM. Please note that
the DDR SDRAM does support ECC (error correcting code) and registered
DIMM.
DDR Population Rules
Install at least one DIMM module on the slots. Each DIMM slot supports
up to a maximum size of 1GB. Users can install either single- or double-sided
modules to meet their own needs. Please note that each DIMM can work
respectively for single-channel DDR, but there are some rules while using
dual-channel DDR (Please refer to the suggested DDR population table on p.
2-8). Users may install memory modules of different type and density on
DDR DIMM Slots
(DIMM 1~4, from left to right)
Channel A: DIMM1 & DIMM2 (green)
Channel B: DIMM3 & DIMM4 (purple)
2-8
MS-6758 ATX Mainboard
Installing DDR Modules
1. The DDR DIMM has only one notch on the center of module. The module
will only fit in the right orientation.
2. Insert the DIMM memory module vertically into the DIMM slot. Then
push it in until the golden finger on the memory module is deeply inserted
in the socket.
3. The plastic clip at each side of the DIMM slot will automatically close.
MSI Reminds You...
You can barely see the golden finger if the module is properly
inserted in the socket.
Volt
Notch
different-channel DDR DIMMs. However , the same type and density memory
modules are necessary while using dual-channel DDR, or instability may happen.
Please refer to the following table for detailed dual-channel DDR. Other
combination not listed below will function as single-channel DDR.
MSI Reminds Y ou...
Dual-channel DDR works ONLY in the 3 combinations listed in
the table above.
DIMM1 (Ch A) DIMM2 (Ch A) DIMM3 (Ch B) DIMM4 (Ch B) System Density
128MB~1GB 128MB~1GB 256MB~2GB
128MB~1GB 128MB~1GB 256MB~2GB
128MB~1GB 128MB~1GB 128MB~1GB 128MB~1GB 512MB~4GB
2-9
Hardware Setup
Power Supply
The mainboard supports ATX power supply for the power system. Before
inserting the power supply connector, always make sure that all components
are installed properly to ensure that no damage will be caused.
A TX 20-Pin Power Connector: JPWR1
This connector allows you to connect to an ATX power supply. To
connect to the ATX power supply, make sure the plug of the power supply is
inserted in the proper orientation and the pins are aligned. Then push down
the power supply firmly into the connector.
A TX 12V Power Connector: JPWR2
This 12V power connector is used to provide power to the CPU.
PIN SIGNAL
1 GND
2 GND
3 12V
4 12V
JPWR2 Pin Definition
PIN SIGNAL
11 3.3V
12 -12V
13 GND
14 PS_ON
15 GND
16 GND
17 GND
1 8 -5V
19 5V
20 5V
PIN SIGNAL
1 3.3V
2 3.3V
3 GND
45V
5 GND
65V
7 GND
8 PW_OK
9 5V_SB
10 12V
JPWR1 Pin Definition
JPWR1
10
1
20
11
JPWR2
1
3
4
2
MSI Reminds Y ou...
Power supply of 300 (and up) watt is highly recommended for
system stability.
2-10
MS-6758 ATX Mainboard
The back panel provides the following connectors:
Back Panel
Mouse Connector
The mainboard provides a standard PS/2® mouse mini DIN connector
for attaching a PS/2® mouse. You can plug a PS/2® mouse directly into this
connector. The connector location and pin assignments are as follows:
PIN SIGNAL DESCRIPTION
1 Mouse DATA Mouse DATA
2 NC No connection
3 GND Ground
4 VCC +5V
5 Mouse Clock Mouse clock
6 NC No connection
Pin Definition
PS/2 Mouse (6-pin Female)
2
1
3
4
5
6
Mouse
Parallel
USB PortsKeyboard
L-in
MIC
FS-Out
LAN
(Optional)
COMA 1394 Port
Mini 1394 Port
USB Ports
SPDIF Out
RS-Out
SPDIF Out
CS-Out
2-11
Hardware Setup
Keyboard Connector
The mainboard provides a standard PS/2® keyboard mini DIN connector
for attaching a PS/2® keyboard. You can plug a PS/2® keyboard directly into
this connector.
PIN SIGNAL DESCRIPTION
1 Keyboard DATA Keyboard DATA
2 NC No connection
3 GND Ground
4 VCC +5V
5 Keyboard Clock Keyboard clock
6 NC No connection
Pin Definition
PS/2 Keyboard (6-pin Female)
2
1
3
4
5
6
USB Connectors
The mainboard provides a UHCI (Universal Host Controller Interface)
Universal Serial Bus root for attaching USB devices such as keyboard, mouse
or other USB-compatible devices. You can plug the USB device directly into
the connector.
PIN SIGNAL DESCRIPTION
1 VCC +5V
2 -Data 0 Negative Data Channel 0
3 +Data0 Positive Data Channel 0
4 GND Ground
5 VCC +5V
6 -Data 1 Negative Data Channel 1
7 +Data 1 Positive Data Channel 1
8 GND Ground
USB Port Description
USB Ports
1 2 3 4
5 6 7 8
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